name: Rust

on:
  push:
    branches:
      - main
  pull_request:

jobs:
  build:
    runs-on: ${{ matrix.os }}
    env:
      MACOSX_DEPLOYMENT_TARGET: 10.11
    strategy:
      matrix:
        os: [ubuntu-latest, windows-latest, macOS-latest]

    steps:
      - uses: actions/checkout@v3

      - name: Install Rust Stable
        uses: actions-rs/toolchain@v1
        with:
          toolchain: stable
          components: rustfmt, clippy
          override: true

      # Necessary for now for the cargo cache: https://github.com/actions/cache/issues/133#issuecomment-599102035
      - if: matrix.os == 'ubuntu-latest'
        run: sudo chown -R $(whoami):$(id -ng) ~/.cargo/

      - name: Install cargo-readme for Ubuntu
        if: matrix.os == 'ubuntu-latest'
        uses: actions-rs/cargo@v1
        with:
          command: install
          args: cargo-readme

      - name: Build
        uses: actions-rs/cargo@v1
        with:
          command: build
          args: --all-targets --verbose --manifest-path ./tokenizers/Cargo.toml

      - name: Lint with RustFmt
        uses: actions-rs/cargo@v1
        with:
          command: fmt
          args: --manifest-path ./tokenizers/Cargo.toml -- --check

      - name: Lint Benchmarks with RustFmt
        uses: actions-rs/cargo@v1
        with:
          command: fmt
          args: --manifest-path ./tokenizers/Cargo.toml -- ./tokenizers/benches/bpe_benchmark.rs --check

      - name: Lint with Clippy
        uses: actions-rs/cargo@v1
        with:
          command: clippy
          args: --manifest-path ./tokenizers/Cargo.toml --all-targets --all-features -- -D warnings

      - name: Run Tests
        if: matrix.os != 'windows-latest'
        shell: bash
        working-directory: ./tokenizers
        run: make test

      # Skip integration tests for now on Windows
      - name: Run lib Tests on Windows
        if: matrix.os == 'windows-latest'
        uses: actions-rs/cargo@v1
        with:
          command: test
          args: --verbose --manifest-path ./tokenizers/Cargo.toml --lib

      - name: Run doc Tests on Windows
        if: matrix.os == 'windows-latest'
        uses: actions-rs/cargo@v1
        with:
          command: test
          args: --verbose --manifest-path ./tokenizers/Cargo.toml --doc

      - name: Run Audit
        uses: actions-rs/cargo@v1
        with:
          command: audit
          args: -D warnings -f ./tokenizers/Cargo.lock

      # Verify that Readme.md is up to date.
      - name: Make sure, Readme generated from lib.rs matches actual Readme
        if: matrix.os == 'ubuntu-latest'
        shell: bash
        working-directory: ./tokenizers
        run: cargo readme > must_match_readme.md && diff must_match_readme.md README.md
